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Finding the Third Proportional to 9,991.50 and 15,013

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Solution

The third proportional to 9,991.50 and 15,013 is: 22,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.50 : 15,013 = 15,013 : x
  2. Step 2: Convert to fraction form
    9,991.50/15,013 = 15,013/x
  3. Step 3: Cross multiply
    9,991.50x = 15,013 × 15,013
  4. Step 4: Simplify right side
    9,991.50x = 225,390,169
  5. Step 5: Solve for x
    x = 225,390,169/9,991.50
  6. Step 6: Final answer
    x = 22,558.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.